Korean Series
The Korean Series is the final championship series of the KBO League. It has been held since the KBO League's first season in and is the final series of the post-season play-offs. From to 2013, the winner of the Korean Series went on to play in the Asia Series.
The teams finishing in fourth and fifth place in the regular season face each other in the wild card game, which was added to the KBO League postseason in 2015. The winner of the wild card game faces the team that finished in third place during the regular season in the first round of the play-offs, with the winner then facing the team that finished in second place during the regular season in the second round of the play-offs. The winner of that round faces the team that finished in first place for the championship in the Korean Series.
All championships are a best-of-seven playoff series between the league pennant winner and the winner of the second round of the play-offs. The series follow a 2–3–2 format since 2025; the first two games and the last two games, if necessary, are played at the home venue of the league pennant winner, while the third, fourth and fifth games are played at the home of the winner of the second round. If the game ends in a tie, more games would be scheduled until any one of the teams wins four games.
Results
* Note: Winning team and losing team columns indicate the number of times that team has appeared in a Korean Series as well as each respective teams' Korean Series record to date.''* Note: Games in the KBO League have a limit to the number of extra innings and/or time that could be played before being officially declared a tied game. When post-season games were declared tied, they had to be replayed.''
Records by team
In the sortable table below, teams are ordered first by number of wins, then by number of appearances, and finally by year of first appearance. In the "Season" column, bold years indicate winning appearances.| Team | Wins | Losses | Apps | Win % | Season |
| Haitai / Kia Tigers | 12 | 0 | 12 | 1.000 | 1983, 1986, 1987, 1988, 1989, 1991, 1993, 1996, 1997, 2009, 2017, 2024 |
| Samsung Lions | 7+1 | 11 | 18 | .389 | 1982, 1984, 1985, 1986, 1987, 1990, 1993, 2001, 2002, 2004, 2005, 2006, 2010, 2011, 2012, 2013, 2014, 2015, 2024 |
| OB / Doosan Bears | 6 | 9 | 15 | .400 | 1982, 1995, 2000, 2001, 2005, 2007, 2008, 2013, 2015, 2016, 2017, 2018, 2019, 2020, 2021 |
| SK Wyverns / SSG Landers | 5 | 4 | 9 | .556 | 2003, 2007, 2008, 2009, 2010, 2011, 2012, 2018, 2022 |
| MBC Chungyong / LG Twins | 4 | 4 | 8 | .500 | 1983, 1990, 1994, 1997, 1998, 2002, 2023, 2025 |
| Pacific Dolphins / Hyundai Unicorns | 4 | 2 | 6 | .667 | 1994, 1996, 1998, 2000, 2003, 2004 |
| Lotte Giants | 2 | 2 | 4 | .500 | 1984, 1992, 1995, 1999 |
| Binggrae / Hanwha Eagles | 1 | 6 | 7 | .142 | 1988, 1989, 1991, 1992, 1999, 2006, 2025 |
| NC Dinos | 1 | 1 | 2 | .500 | 2016, 2020 |
| KT Wiz | 1 | 1 | 2 | .500 | 2021, 2023 |
| Nexen / Kiwoom Heroes | 0 | 3 | 3 | .000 | 2014, 2019, 2022 |
Frequent matchups
The following are the ten matchups of teams that have occurred two or more times in the Korean Series.| Count | Matchup | Record | Years |
| 5 | Doosan Bears vs. Samsung Lions | Bears, 32 | 1982, 2001, 2005, 2013, 2015 |
| 4 | Kia Tigers vs. Samsung Lions | Tigers, 40 | 1986, 1987, 1993, 2024 |
| 3 | Kia Tigers vs. Hanwha Eagles | Tigers, 30 | 1988, 1989, 1991 |
| 3 | SSG Landers vs. Doosan Bears | Landers, 30 | 2007, 2008, 2018 |
| 3 | Samsung Lions vs. SSG Landers | Lions, 21 | 2010, 2011, 2012 |
| 2 | Kia Tigers vs. LG Twins | Tigers, 20 | 1983, 1997 |
| 2 | Samsung Lions vs. LG Twins | Tied, 11 | 1990, 2002 |
| 2 | Lotte Giants vs. Hanwha Eagles | Tied, 11 | 1992, 1999 |
| 2 | LG Twins vs. Hyundai Unicorns | Tied, 11 | 1994, 1998 |
| 2 | Doosan Bears vs. NC Dinos | Tied, 11 | 2016, 2020 |